On Aug 22, 2016, at 6:40 AM, Pascal Quantin <[email protected]> wrote:

> By having a quick look at the code, I *think* you will want first to retrieve 
> the hfindex of a given field by using proto_registrar_get_id_byname(), then 
> mark it as "interesting" with proto_tree_prime_hfid()

...which you have to do before the dissection starts.

Unfortunately, you can't do that in a post-dissector.

So...

> aOr a cll to proto_find_finfo() should work also without the need to prime 
> the field, but should be slower according to the comments in proto.h.

...you might have to do it that way, instead.
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